Q: What are the prime factors of the number 36,090?

 A: 2, 3, 5, 401

Why are those the prime factors of the number 36,090?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 36,090

36,090
Factor Arrows
218,045
Factor Arrows
36,015
Factor Arrows
32,005
Factor Arrows
5401

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of:

2, 3, 5, 401

We can check our work by multiplying all of the prime factors together: 2 x 3 x 3 x 5 x 401 = 36,090

This can also be written as 21 x 32 x 51 x 4011 = 36,090

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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